De-planes, a verb commonly used in the aviation industry refers to the act of getting off or disembarking from a plane. The antonyms for this term would be to 'board' or 'embark' on a plane. Synonyms for de-planes can include 'disembark,' 'exit,' 'alight,' and 'dismount.' 'Boarding' a plane is the opposite of de-planing, which means to get on the plane. The antonyms for de-planes are important to understand for travelers or anyone operating in the aviation industry as they can help provide clarity in communication and improve overall efficiency.